patchkernel: simplify initialization of the patch

The function "spawn" is now obsolete, the first update of the patch
will take care of the initialization.

Author: andrea-iob

src/patchkernel/patch_kernel.cpp

@@ -242,7 +242,6 @@ PatchKernel::PatchKernel(const PatchKernel &other)
       m_boxMaxCounter(other.m_boxMaxCounter),
       m_adjacenciesBuildStrategy(other.m_adjacenciesBuildStrategy),
       m_interfacesBuildStrategy(other.m_interfacesBuildStrategy),
-      m_spawnStatus(other.m_spawnStatus),
       m_adaptionMode(other.m_adaptionMode),
       m_adaptionStatus(other.m_adaptionStatus),
       m_dimension(other.m_dimension),
@@ -329,7 +328,6 @@ PatchKernel::PatchKernel(PatchKernel &&other)
       m_boxMaxCounter(std::move(other.m_boxMaxCounter)),
       m_adjacenciesBuildStrategy(std::move(other.m_adjacenciesBuildStrategy)),
       m_interfacesBuildStrategy(std::move(other.m_interfacesBuildStrategy)),
-      m_spawnStatus(std::move(other.m_spawnStatus)),
       m_adaptionMode(std::move(other.m_adaptionMode)),
       m_adaptionStatus(std::move(other.m_adaptionStatus)),
       m_id(std::move(other.m_id)),
@@ -419,7 +417,6 @@ PatchKernel & PatchKernel::operator=(PatchKernel &&other)
 	m_boxMaxCounter = std::move(other.m_boxMaxCounter);
 	m_adjacenciesBuildStrategy = std::move(other.m_adjacenciesBuildStrategy);
 	m_interfacesBuildStrategy = std::move(other.m_interfacesBuildStrategy);
-	m_spawnStatus = std::move(other.m_spawnStatus);
 	m_adaptionMode = std::move(other.m_adaptionMode);
 	m_adaptionStatus = std::move(other.m_adaptionStatus);
 	m_id = std::move(other.m_id);
@@ -523,13 +520,10 @@ void PatchKernel::initialize()
 	// Set interfaces build strategy
 	setInterfacesBuildStrategy(INTERFACES_NONE);
 
-	// Set the spawn as unneeded
-	//
-	// Specific implementation will set the appropriate status during their
-	// initialization.
-	setSpawnStatus(SPAWN_UNNEEDED);
-
 	// Set the adaption as clean
+	//
+	// Setting the adaptation as dirty guarantees that, at the first patch
+	// updated, all the data structures will be properly initialized.
 	setAdaptionStatus(ADAPTION_CLEAN);
 
 #if BITPIT_ENABLE_MPI==1
@@ -645,12 +639,6 @@ std::vector<adaption::Info> PatchKernel::update(bool trackAdaption, bool squeeze
 	// Finalize alterations
 	mergeAdaptionInfo(finalizeAlterations(trackAdaption, squeezeStorage), adaptionData);
 
-	// Spawn
-	bool spawnNeeed = (getSpawnStatus() == SPAWN_NEEDED);
-	if (spawnNeeed) {
-		mergeAdaptionInfo(spawn(trackAdaption), adaptionData);
-	}
-
 	// Adaption
 	bool adaptionDirty = (getAdaptionStatus(true) == ADAPTION_DIRTY);
 	if (adaptionDirty) {
@@ -689,33 +677,7 @@ void PatchKernel::simulateCellUpdate(const long id, adaption::Marker marker, std
 */
 std::vector<adaption::Info> PatchKernel::spawn(bool trackSpawn)
 {
-	std::vector<adaption::Info> spawnData;
-
-#if BITPIT_ENABLE_MPI==1
-	// This is a collevtive operation and should be called by all processes
-	if (isPartitioned()) {
-		const auto &communicator = getCommunicator();
-		MPI_Barrier(communicator);
-	}
-#endif
-
-	// Check spawn status
-	SpawnStatus spawnStatus = getSpawnStatus();
-	if (spawnStatus == SPAWN_UNNEEDED || spawnStatus == SPAWN_DONE) {
-		return spawnData;
-	}
-
-	// Spawn the patch
-	spawnData = _spawn(trackSpawn);
-
-	// Finalize patch alterations
-	finalizeAlterations(true);
-
-	// Spwan is done
-	setSpawnStatus(SPAWN_DONE);
-
-	// Done
-	return spawnData;
+	return adaption(trackSpawn);
 }
 
 /*!
@@ -1347,23 +1309,9 @@ void PatchKernel::write(VTKWriteMode mode)
 */
 PatchKernel::SpawnStatus PatchKernel::getSpawnStatus() const
 {
-	// There is no need to check the spawn status globally because the spawn
-	// status will always be the same on all the processes.
-
-	return m_spawnStatus;
-}
-
-/*!
-	Set the current spawn status.
-
-	\param status is the spawn status that will be set
-*/
-void PatchKernel::setSpawnStatus(SpawnStatus status)
-{
-	m_spawnStatus = status;
+	return SPAWN_UNNEEDED;
 }
 
-
 /*!
 	Checks if the patch supports adaption.
 
@@ -1472,10 +1420,6 @@ bool PatchKernel::isDirty(bool global) const
 		assert(isDirty || m_alteredInterfaces.empty());
 	}
 
-	if (!isDirty) {
-		isDirty |= (getSpawnStatus() == SPAWN_NEEDED);
-	}
-
 	if (!isDirty) {
 		isDirty |= (getAdaptionStatus(false) == ADAPTION_DIRTY);
 	}
@@ -5237,24 +5181,6 @@ void PatchKernel::restoreInterfaces(std::istream &stream)
 	setAdaptionMode(previousAdaptionMode);
 }
 
-/*!
-	Generates the patch.
-
-	Default implementation is a no-op function.
-
-	\param trackSpawn if set to true the changes to the patch will be tracked
-	\result Returns a vector of adaption::Info that can be used to track
-	the changes done during the spawn.
-*/
-std::vector<adaption::Info> PatchKernel::_spawn(bool trackSpawn)
-{
-	BITPIT_UNUSED(trackSpawn);
-
-	assert(false && "The patch needs to implement _spawn");
-
-	return std::vector<adaption::Info>();
-}
-
 /*!
 	Prepares the patch for performing the adaption.
 
@@ -8341,9 +8267,6 @@ bool PatchKernel::dump(std::ostream &stream) const
 	utils::binary::write(stream, 0);
 #endif
 
-	// Spawn status
-	utils::binary::write(stream, m_spawnStatus);
-
 	// Adaption information
 	utils::binary::write(stream, m_adaptionMode);
 	utils::binary::write(stream, m_adaptionStatus);
@@ -8442,9 +8365,6 @@ void PatchKernel::restore(std::istream &stream, bool reregister)
 	utils::binary::read(stream, dummyHaloSize);
 #endif
 
-	// Spawn status
-	utils::binary::read(stream, m_spawnStatus);
-
 	// Adaption information
 	utils::binary::read(stream, m_adaptionMode);
 	utils::binary::read(stream, m_adaptionStatus);

src/patchkernel/patch_kernel.hpp

@@ -399,8 +399,8 @@ friend class PatchManager;
 
 	virtual void simulateCellUpdate(const long id, adaption::Marker marker, std::vector<Cell> *virtualCells, PiercedVector<Vertex, long> *virtualVertices) const;
 
-	SpawnStatus getSpawnStatus() const;
-	std::vector<adaption::Info> spawn(bool trackSpawn);
+	BITPIT_DEPRECATED(SpawnStatus getSpawnStatus() const);
+	BITPIT_DEPRECATED(std::vector<adaption::Info> spawn(bool trackSpawn));
 
 	bool isAdaptionSupported() const;
 	AdaptionMode getAdaptionMode() const;
@@ -891,9 +891,6 @@ friend class PatchManager;
 
 	bool testAlterationFlags(AlterationFlags availableFlags, AlterationFlags requestedFlags) const;
 
-	void setSpawnStatus(SpawnStatus status);
-	virtual std::vector<adaption::Info> _spawn(bool trackAdaption);
-
 	void setAdaptionMode(AdaptionMode mode);
 	void setAdaptionStatus(AdaptionStatus status);
 	virtual std::vector<adaption::Info> _adaptionPrepare(bool trackAdaption);
@@ -1001,8 +998,6 @@ friend class PatchManager;
 
 	InterfacesBuildStrategy m_interfacesBuildStrategy;
 
-	SpawnStatus m_spawnStatus;
-
 	AdaptionMode m_adaptionMode;
 	AdaptionStatus m_adaptionStatus;
 

src/volcartesian/volcartesian.cpp

@@ -481,9 +481,6 @@ void VolCartesian::initialize()
 	// Set the bounding box as frozen
 	setBoundingBoxFrozen(true);
 
-	// This patch need to be spawn
-	setSpawnStatus(SPAWN_NEEDED);
-
 	// Set the light memory mode
 	setMemoryMode(MemoryMode::MEMORY_LIGHT);
 
@@ -949,7 +946,6 @@ void VolCartesian::switchMemoryMode(MemoryMode mode)
 	switch (mode) {
 
 	case MemoryMode::MEMORY_NORMAL:
-		// Spawn the patch to activate normal memory mode
 		spawn(false);
 
 		break;
@@ -960,9 +956,6 @@ void VolCartesian::switchMemoryMode(MemoryMode mode)
 		// the kernel.
 		VolumeKernel::reset();
 
-		// Now the patch needs to be spawn
-		setSpawnStatus(SPAWN_NEEDED);
-
 		// Set the light memory mode
 		setMemoryMode(mode);
 
@@ -1012,7 +1005,7 @@ double VolCartesian::getSpacing(int direction) const
 	\result Returns a vector of adaption::Info that can be used to track
 	the changes done during the update.
 */
-std::vector<adaption::Info> VolCartesian::_spawn(bool trackSpawn)
+std::vector<adaption::Info> VolCartesian::spawn(bool trackSpawn)
 {
 	std::vector<adaption::Info> adaptionData;
 
@@ -1195,9 +1188,6 @@ void VolCartesian::_dump(std::ostream &stream) const
  */
 void VolCartesian::_restore(std::istream &stream)
 {
-	// This patch need to be spawn
-	setSpawnStatus(SPAWN_NEEDED);
-
 	// Origin
 	std::array<double, 3> origin;
 	utils::binary::read(stream, origin[0]);

src/volcartesian/volcartesian.hpp

@@ -146,7 +146,7 @@ class VolCartesian : public VolumeKernel {
 	long getCellFaceNeighsLinearId(long id, int face) const;
 
 protected:
-	std::vector<adaption::Info> _spawn(bool trackSpawn) override;
+	std::vector<adaption::Info> spawn(bool trackSpawn);
 
 	void _updateAdjacencies() override;
 

src/voloctree/voloctree.cpp

@@ -483,13 +483,16 @@ void VolOctree::initialize()
 {
 	log::cout() << ">> Initializing Octree mesh" << std::endl;
 
+	// Set the adaption as clean
+	//
+	// Setting the adaptation as dirty guarantees that, at the first patch
+	// updated, all the data structures will be properly initialized.
+	setAdaptionStatus(ADAPTION_DIRTY);
+
 	// Reset the cell and interface type info
 	m_cellTypeInfo      = nullptr;
 	m_interfaceTypeInfo = nullptr;
 
-	// This patch need to be spawn
-	setSpawnStatus(SPAWN_NEEDED);
-
 	// Initialize the tolerance
 	//
 	// Since the patch re-implements the function to reset the tolerance,
@@ -939,26 +942,6 @@ int VolOctree::getCellFamilySplitLocalVertex(long id) const
 	return m_tree->getFamilySplittingNode(octant);
 }
 
-/*!
-	Generates the patch.
-
-	\param trackSpawn if set to true the changes to the patch will be tracked
-	\result Returns a vector of adaption::Info that can be used to track
-	the changes done during the update.
-*/
-std::vector<adaption::Info> VolOctree::_spawn(bool trackSpawn)
-{
-	std::vector<adaption::Info> adaptionData;
-
-	// Perform initial import
-	if (empty()) {
-		m_tree->adapt();
-		adaptionData = sync(trackSpawn);
-	}
-
-	return adaptionData;
-}
-
 /*!
 	Prepares the patch for performing the adaption.
 
@@ -975,10 +958,6 @@ std::vector<adaption::Info> VolOctree::_adaptionPrepare(bool trackAdaption)
 {
 	BITPIT_UNUSED(trackAdaption);
 
-	if (getSpawnStatus() == SPAWN_NEEDED) {
-		throw std::runtime_error ("The initial import has not been performed.");
-	}
-
 	// Call pre-adapt routine
 	m_tree->preadapt();
 

src/voloctree/voloctree.hpp

@@ -133,8 +133,6 @@ class VolOctree : public VolumeKernel {
 	void setCommunicator(MPI_Comm communicator) override;
 #endif
 
-	std::vector<adaption::Info> _spawn(bool trackSpawn) override;
-
 	void _updateAdjacencies() override;
 
 	std::vector<adaption::Info> _adaptionPrepare(bool trackAdaption) override;